Can you please help me with these problems I don't understand them? thanxs!

Question

Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.

f(x) = 2(x - 2)(x + 4)^4

f(x) = 3(x - 3)(x - 6)^3

f(x) = -4(x - 5)^3

Answer 1

and your thinking is...?

zeroes are when f(x) is zero.